Crisis energética: El futuro de los combustibles fósiles (Energy Crisis: The Future of Fossil Fuels)

Algorithms might sound like a complicated tech term, but don't be intimidated, people actually use them every day. Using accessible language and full-color photographs, this book simplifies algorithms in an easy-to-understand way. Readers will be amazed to learn that an algorithm is just a set of steps for computers to follow to get things done. STEM topics from the Next Generation Science Standards are emphasized throughout the text. Sidebars featuring key terms help readers grow their tech vocabulary, and fact boxes provide additional opportunities to learn.

A beautifully illustrated picture book takes young readers on a journey of discovery to find out what it would be like to go to the moon, as they fly into outer space, walk on the Moon, and take a look at our world from a very, very long way away.

Torres, peones y caballos ¡a la carga!. No dejen que nos capturen a nadie; su deber es protegerme. Tú, mi reina, quédate aquí conmigo, que todos nos van a cuidar, ¡Alfil! Dime qué ves, aconséjame cuál pieza mover. Y tú, lector ¿te atreves a retarme? El rey. ¿Has oído hablar del ajedrez? ¿Conoces el tablero, sus piezas y la manera en que se mueven? Rooks, pawns, and cavalry... charge! Do not allow a single piece to be taken captive. You, my queen, must stay beside me. They are all here to protect us! Bishop, tell me what you see? What piece should I move? Reader, do you accept...

This historical novel will fascinate young readers as they learn about Mayan customs and lifestyle. A glossary of Mayan terms and authentic drawings will help children understand this highly advanced culture. Text copyright 2004 Lectorum Publications, Inc.

A researcher looks at cells under a microscope. A scientist studies bacteria in a Petri dish. A student boils liquid in a test tube. What do these things all have in common? The answer is: glass! Learn how something as simple as glass has played a huge role in scientific exploration with this fascinating Spanish Informational Text created in collaboration with the Smithsonian Institution! Build reading skills while engaging students' curiosity about STEAM topics through real-world examples. Packed with factoids and informative sidebars, this Spanish book features a hands-on STEAM challenge...